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Sewage tank adopts cam rotor pump to process water and oil mixture
The strong self-priming ability of the cam rotor pump is fully demonstrated at the petrochemical sewage collection tank station. This station can replace submersible pumps or shaft centrifugal pumps that need to build supports above the pool. Since these two pump types need to be immersed in sewage, it is necessary to choose suitable pump body materials and consider the high maintenance costs in the later stage. These problems are solved after the cam rotor pump.
During the operation of the cam rotor pump , a vacuum-tight cavity is formed between the corrosion-resistant rubber-coated rotor and the pump casing. The vacuum degree reaches 0.085Mpa and the self-priming height can reach 7-8m.
The strong self-priming ability enables the cam rotor pump to be completely installed outside the water surface, and can be a certain distance from the sewage collection tank.
The medium in the sewage collection tank is generally composed of sewage and sewage oil as the main chemical substance. The low-shear, low-speed cam rotor pump can effectively avoid emulsification of the oil-water mixture and reduce the difficulty of subsequent steps.
The strong self-priming allows the cam rotor pump to be completely installed above the sewage collection tank. The replacement of the parts does not need to remove the pipeline. Opening the pump cover can complete the overall maintenance of the pump.
Therefore, in the petrochemical industry, more and more oily wastewater lifting and similar self-priming process applications use cam rotor pumps instead of submersible pumps or shaft centrifugal pumps.
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